312749827 has 8 divisors (see below), whose sum is σ = 340593120. Its totient is φ = 285447360.

The previous prime is 312749813. The next prime is 312749831. The reversal of 312749827 is 728947213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312749827 - 2²³ = 304361219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312749887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133999 + ... + 136312.

It is an arithmetic number, because the mean of its divisors is an integer number (42574140).

Almost surely, 2^312749827 is an apocalyptic number.

312749827 is a deficient number, since it is larger than the sum of its proper divisors (27843293).

312749827 is a wasteful number, since it uses less digits than its factorization.

312749827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270413.

The product of its digits is 169344, while the sum is 43.

The square root of 312749827 is about 17684.7342926039. The cubic root of 312749827 is about 678.7851919299.

The spelling of 312749827 in words is "three hundred twelve million, seven hundred forty-nine thousand, eight hundred twenty-seven".